package com.gt.aep.base.config;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;

/**
 * 解决前后端分离项目中前端使用ajax时的跨域问题
 */
@Configuration
public class CorsConfig {
    @Bean
    public FilterRegistrationBean corsFilter() {
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        CorsConfiguration config = new CorsConfiguration();
        config.setAllowCredentials(true);
        // 设置域名你要允许的网站，如果全允许则设为 *
        //config.addAllowedOrigin("http://127.0.0.1:3000");
        config.addAllowedOrigin("*");
        // 如果要限制 HEADER 或 METHOD 请自行更改
        config.addAllowedHeader("x-requested-with,content-type,requesttype");
        config.addAllowedMethod("*");
        source.registerCorsConfiguration("/**", config);
        FilterRegistrationBean bean = new FilterRegistrationBean(new CorsFilter(source));
        // 这个顺序很重要哦，为避免麻烦请设置在最前
        bean.setOrder(0);
        return bean;
    }
}
